Accumulated Other Comprehensive Loss (Details) - USD ($)	3 Months Ended
	Sep. 30, 2023	Oct. 01, 2022
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	$ 690,800,000	$ 671,700,000
Other comprehensive loss before reclassification	(20,400,000)
Amounts reclassified out of accumulated other comprehensive loss	(100,000)
Net change in accumulated other comprehensive loss	(20,500,000)	(42,900,000)
Balance at the end of the period	675,200,000	648,400,000
Tax impact of amortization of actuarial gains (losses)	0
Total
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(136,000,000.0)	(156,400,000)
Net change in accumulated other comprehensive loss	(20,500,000)	(42,900,000)
Balance at the end of the period	(156,500,000)	$ (199,300,000)
Unrealized losses on available-for sale investments
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(5,300,000)
Other comprehensive loss before reclassification	0
Amounts reclassified out of accumulated other comprehensive loss	0
Net change in accumulated other comprehensive loss	0
Balance at the end of the period	(5,300,000)
Foreign  currency translation adjustments, net of tax
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(125,400,000)
Other comprehensive loss before reclassification	(20,400,000)
Amounts reclassified out of accumulated other comprehensive loss	0
Net change in accumulated other comprehensive loss	(20,400,000)
Balance at the end of the period	(145,800,000)
Change in unrealized components of defined benefit obligations
Changes in accumulated other comprehensive income (loss) by component
Balance at the beginning of the period	(5,300,000)
Other comprehensive loss before reclassification	0
Amounts reclassified out of accumulated other comprehensive loss	(100,000)
Net change in accumulated other comprehensive loss	(100,000)
Balance at the end of the period	$ (5,400,000)